The Sa Wasteland

[Aberax]

so abe do i get to take the valve covers to use for carbon fibre molds? you can have them back unscathed , timing covers too???? intake plenum ???

You can borrow the Cam Shaft Covers, but 1 has a slight dent in it already, should be easy to bang out. No timing covers or intake plenum, didn't come with the head.

let me know if you want help porting and polishing the head, gasket matching the ports ? done a few in my day..lol

I am most likely going to get a machine shop to do this work, thinking Red R Racing, but I'll get some quotes first.

[Dohmar]

and gates belts rock, they used to make them down the road from me in USA, gates batteries(optima as well)

+1 again. I dont see how the belt is meant to expand under heat - the very compound that stops it stretching stops it from contracting

kye is spot on about the noise - only happens when its too tight, and ive never had a problem with my gates racing belt - maybe its a tonne different than the normal gates belt, who knows...

-D

[dark.sky]

+1 again. I dont see how the belt is meant to expand under heat - the very compound that stops it stretching stops it from contracting

kye is spot on about the noise - only happens when its too tight, and ive never had a problem with my gates racing belt - maybe its a tonne different than the normal gates belt, who knows...

-D

I thought you told me the gates belt was playing havoc with your timing?? Something about someone told you they dont stretch...

[SLED]

You can borrow the Cam Shaft Covers, but 1 has a slight dent in it already, should be easy to bang out. No timing covers or intake plenum, didn't come with the head.

I am most likely going to get a machine shop to do this work, thinking Red R Racing, but I'll get some quotes first.

as I said to you the other night Abe before I had to rush off, light porting ie. removal of lips and ridges etc are fine to do at home but any major porting should never be attempted without a flow bench and the ability to cc the ports & chambers...also, get the seats machined (or inserts replaced) after, not before cause I've seen too many slips of the stones and burr bits ruin good seats

[Dohmar]

I thought you told me the gates belt was playing havoc with your timing?? Something about someone told you they dont stretch...

not quite, as i told you the cam timing was due to the TDC marking on the cams being out several degrees

I have read however that some belts do stretch, however this is only during acceleration and only by the very smallest margin - once the belt is running the cams on a standard or decelerating speed they hold their shape - spoke to several mechanics about this and they agreed it was all a theory that whilst true, didn't make any bearing upon the timing of the engine as a whole

-D

Edit - to add to petes post, why bother porting it at all? the gains are negligible and not worth it unless you're chasing that extra 1/10th a second around a track - waste of money on a streetcar but if u got the coin to spend a couple g's to get 5 extra kw then cool

[heslo]

You can borrow the Cam Shaft Covers, but 1 has a slight dent in it already, should be easy to bang out. No timing covers or intake plenum, didn't come with the head.

I am most likely going to get a machine shop to do this work, thinking Red R Racing, but I'll get some quotes first.

That "dent" is there for a reason, it's to accomodate the crossover pipe on an RB25, check and you'll see what I mean.

As for the Gates belts, yeah, they whine, comes part and parcel of those belts I'm afraid and it's well documented.

If you're going to get it ported, go to Rhemac, speak to Mark. They are the guys to see, do awesome work, reasonably priced, know their shit and best of all, right here in SA! They did my 26 head, came up sweet!

[Dohmar]

That "dent" is there for a reason, it's to accomodate the crossover pipe on an RB25, check and you'll see what I mean.

As for the Gates belts, yeah, they whine, comes part and parcel of those belts I'm afraid and it's well documented.

If you're going to get it ported, go to Rhemac, speak to Mark. They are the guys to see, do awesome work, reasonably priced, know their shit and best of all, right here in SA! They did my 26 head, came up sweet!

not that i think ill get it done, but im curious about the price u paid

do u reckon u could pm me the details and cost of what u got done?

im gonna get mine polished but porting seems a waste on a streeter like mine

-D

Edit also can u provide links for the 'noise issue' with gates? Im interested to know if it affects the dayco range or applies to the gates racing brand... or if im just going deaf

[heslo]

I've got nothing to hide... I'll post it here for all to see incase they are thinking of getting it done.

Hardness test, cold tanking the head, pressure test, check clearances, sync S&R and refacing of the head came to a touch over $1000, add another $600 or so for a nice simple port/polish job (enough to get returns while remaining cost effective) This included fitting my new cams, etc.

Don't have time to search ATM, but here's a quick link for you Noisy belt

[Luke_ENR34]

Also heard of the Gates noisy belts. Staying away from them on my motor and went a brand spanking nismo item

[S1LV3RTRACKS]

Had my 100,000 service done back in April with a Gates belt and I have no noise. My mechanic must have tensioned it correctly. Now just have to find out why my ECU is giving me a fluctuating timing figure on idle.

[Dohmar]

I've got nothing to hide... I'll post it here for all to see incase they are thinking of getting it done.

Hardness test, cold tanking the head, pressure test, check clearances, sync S&R and refacing of the head came to a touch over $1000, add another $600 or so for a nice simple port/polish job (enough to get returns while remaining cost effective) This included fitting my new cams, etc.

Don't have time to search ATM, but here's a quick link for you Noisy belt

Thats interesting, I may very well go there myself if those are the prices.

I wasnt implying you had anything to hide, rather now that you've published the price, everyone on here is going to be expecting the same deal, and maybe theyve put the prices up in the meantime or whatever. just saying i give quotes privately cause quotes change upon application and i dont wanna lead anyone into a false sense of security when it comes to cost estimates

that said the price is still very reasonable. i may very well eat my words again.

Thats a good read regarding the timing belt. some have pointed out that its a tad stronger, so if, and i do mean if there was more noise, id gladly put up with it if the strength is better. mind you my exhaust is so stupendously loud i may just not be hearing it. ill stick with the gates for now i think.

-D

[heslo]

Thats interesting, I may very well go there myself if those are the prices.

I wasnt implying you had anything to hide, rather now that you've published the price, everyone on here is going to be expecting the same deal, and maybe theyve put the prices up in the meantime or whatever. just saying i give quotes privately cause quotes change upon application and i dont wanna lead anyone into a false sense of security when it comes to cost estimates

that said the price is still very reasonable. i may very well eat my words again.

Thats a good read regarding the timing belt. some have pointed out that its a tad stronger, so if, and i do mean if there was more noise, id gladly put up with it if the strength is better. mind you my exhaust is so stupendously loud i may just not be hearing it. ill stick with the gates for now i think.

-D

I didn't give EXACT figures, that's a ballpark, a rough guide for people to use. Obviously 4cyl, 6cyl and 8cyl will incur different costs and depending on what you have done will change pricing as well.

The reasons I port/polished my head was twofold...

1) The head was already off, so why not

2) I'm all about maximising what's there; chucking in the cams, I wanted a bit of a tidy-up and a freshen up of the head to ensure everything was A-OK.

For my outlay, I think I got a reasonable amount of benefits, time will tell when I get the time to put it all back together, re-tuned on the dyno with a final power figure

[Dohmar]

I didn't give EXACT figures, that's a ballpark, a rough guide for people to use. Obviously 4cyl, 6cyl and 8cyl will incur different costs and depending on what you have done will change pricing as well.

The reasons I port/polished my head was twofold...

1) The head was already off, so why not

2) I'm all about maximising what's there; chucking in the cams, I wanted a bit of a tidy-up and a freshen up of the head to ensure everything was A-OK.

For my outlay, I think I got a reasonable amount of benefits, time will tell when I get the time to put it all back together, re-tuned on the dyno with a final power figure

cool - im interested to see the before and afters - how far into re-assembly are you?

Tomorrow me and a mate are removing the intake and exhaust manifolds, turbos, intake piping, strut brace, cam gear covers, coilpack covers, and cam covers removed for powdercoating or ceramic coating, gasket replacements. exhaust housing for n1's has been unbolted and sent for ceramic coating, which is where the manifolds are going on Mon. should get turbos back on tuesday, fit em either tuesday/wed with all the coated piping and gaskets, thursday by latest - fri it goes to shaun @ boostworx for his touch of genius

busy week. head jobs wont happen till late next year or mid 2012 (juveniles stfu) but thats about the time i want to get forged pistons anyhow.. another chapter in the world of GTR

-D

[heslo]

Head is still sitting on the workshop floor along with the intake and turbos.... so to answer your question I haven't even started

Taking all that off, I'd recommend you replace ALL of your studs, do it for piece of mind. It's a prick of a job that you WON'T want to do twice

[Dohmar]

Head is still sitting on the workshop floor along with the intake and turbos.... so to answer your question I haven't even started

Taking all that off, I'd recommend you replace ALL of your studs, do it for piece of mind. It's a prick of a job that you WON'T want to do twice

oh yeah, gil already told me that.... $1k worth of studs, both for head and main... worth doing it right

i just hope the nitto oil pumps come down in price a bit. from what ive seen in tests, theyre pretty good bang for buck

probably get nitto pistons if their metals are that good

-D

[heslo]

Yeah the Nitto pumps are nice, proven too!

[skwiz]

It's a turbo car, and you are worried about your belts making a little noise.

Should fill your timing case with concrete!

[Madaz]

Chad fitted those rims today great fitment on the front still have a little room too

[DSTROY]

Good stuff steve, are those rims the same gold as your other rims?

[dark.sky]

It's a turbo car, and you are worried about your belts making a little noise.

Should fill your timing case with concrete!

Is that an automotive way of telling me to harden the f**k up?